19191540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{499}}^1\times {\mathrm{641}}^1$

素因数の和:1152

約数の個数: 48

約数和(自身を含む): 53928000

約数和(自身を除く): 34736460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 499, 641, 998, 1282, 1497, 1923, 1996, 2495, 2564, 2994, 3205, 3846, 4990, 5988, 6410, 7485, 7692, 9615, 9980, 12820, 14970, 19230, 29940, 38460, 319859, 639718, 959577, 1279436, 1599295, 1919154, 3198590, 3838308, 4797885, 6397180, 9595770, 19191540]

約数ペア:

[(1, 19191540), (2, 9595770), (3, 6397180), (4, 4797885), (5, 3838308), (6, 3198590), (10, 1919154), (12, 1599295), (15, 1279436), (20, 959577), (30, 639718), (60, 319859), (499, 38460), (641, 29940), (998, 19230), (1282, 14970), (1497, 12820), (1923, 9980), (1996, 9615), (2495, 7692), (2564, 7485), (2994, 6410), (3205, 5988), (3846, 4990)]